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Analysis Of System Reliability As A Capital Investment, Albert J. Williams
Analysis Of System Reliability As A Capital Investment, Albert J. Williams
Retrospective Theses and Dissertations
This report, "Analysis of System Reliability as a Capital Investment", is an analysis of radar system reliability of two similar tracking radar systems as a capital investment. It describes the two tracking radar systems and calculates the mission failures rates based upon field failure data. Additionally, an analysis of a simulation program written in FORTRAN is performed which treats system reliability as a capital investment based on 335 electronic systems that were fabricated with a reliability program versus 564 electronic systems fabricated without a reliability program. The data from the two tracking radar systems, one with reliability program and the …
The Application Of Limit Analysis To Shell Structures Using Existing Finite Element Analysis Codes, George G. Myers
The Application Of Limit Analysis To Shell Structures Using Existing Finite Element Analysis Codes, George G. Myers
Retrospective Theses and Dissertations
A ramjet inlet duct structure has been designed using nonlinear structural analysis to allow local plastic deformations which result in structural weight reduction. To establish the feasibility of reduced shell thickness, the Lower-Bound Theorem of limit analysis has been applied using an existing finite element analysis computer code intended for elastic analysis. The results of the analysis were verified by structural testing. Predicted stresses and deflections showed good correlation with measured values up to the point of failure. This work was supported by the U.S. Air Force Aero Propulsion Laboratory, Wright-Patterson Air Force Base, Ohio, under Contract No. F33615-72-C-1366.